Linked from
The 16 pages that link to Forging, each with the reason it gives.
Connecting rodRelated: Forged steel rods are common where strength and fatigue resistance matter.
MalleabilityRelated: Forging depends on a material deforming under blows without cracking.
IronworkingRelated: Hot iron can be shaped into tools and components by repeated blows.
Machine pressRelated: Forging presses deform heated or cold metal under sustained compressive load.